Clip pen



FIG. 1 is a perspective view of a clip pen, showing my new design;

FIG. 2 is a left view thereof;

FIG. 3 is a right view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is another perspective thereof; and,

FIG. 8 is yet another perspective thereof.

The broken lines on the drawings are shown for illustrative purposesonly and form no part of the claimed design.

The ornamental design for a clip pen, as shown and described.